Electrical water-heater.



No. 829,808. PATENTE@ AUG, 285 wo@ F. P. SHIPP.

ELBGTMGAL WATER HEATER.

APPLIATIQN FILED SEPT. 12, 1904.

2 SHEETS*SHEET 1.

PATEN-TBD AUG'. 28, 1808.

I. P.' SHIP?. ELECTRICAL WATER HEATER.

APPLICATION FILED SEPT. 12, 1904.

2 SHEETS-SHEET 2.

PATENT orrion FREDERIC F. SHIP?, @F ST. LOUIS, i\'llSSOURl, lASSIGOR TO ELECTRICAL HEATING @n MANUFACTURING COMPANY, (')F ST. l.OUlSi\ilSSOURI, A

CORPORATION.

aLEcTRio/AL WATER-HEATER.

Specification of Letters Patent.

Patented Aug. 28, 1.906.

Application filed September 12,1904. Serial No, 224,152.

proveinents in Electrical VVatcr-lieaters, of-

which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this 1o specification.

My invention relates to an electrical waterheater which is designed to be placed in a receptacle in the water to be heated; and it consists of a main body in the forni of a slab I5 or slabs and a heating-coil moving through passage-ways through the medium of which when an electrical current is present in said coil it is im arted to said body to be radiated andheat tfie surrounding water.

Figure I is a perspective view of invhcater with one of its corners cut out to show the heater at the location of the removed .corner in both longitudinal and transverse section. Fig. II is a transverse section taken on .line II II,-Fig.'I. Fig. III is a horizontal longitudinal section taken through one end of the heater with a portion of the coil laid therein.

Fig. IV is a perspective View of a inodiiication of my heater with a ortion of the upper 3o slab broken away. Fig. lV is a vertical transverse section taken on line V V, Fig. IV.

Fig. VI is a top view of the lower slab of the modified forni of heater shown in Fig. IV

with the heater-coil laid therein, the central -portion of the slab and coil being broken out.

. Referring first to Figs. I to III, inclusive,

1 designates the bodv'of my heater, which is in the forni of a single slab oi'- porcelain, iireclay, or other material that is a good conduc- 4o tor of heat and a non-conductor of electricity,

so that the electrical wiring laid therein may not bo subjected to loss of eiectrical current while. tho heat emanating therefrom is readily received by tho body and diffused into the water that is to be heated. In the body 1 I produce a pluraiity of ducts 2, extending` transversely therethrough from the. side edges of the body, and in these ducts I lay an electrical conductor 3, that is woven to and fro SO in a devious course and in the form of a coil throughout the ducts, as seen in Fig. III.

I thereby produce a coil of large surface throughout the extent of the heater, due to th(` various folds thereof being laid close to- Gethcr, but insulated by the portions of the body of thc hcatci between the folds, and as a consequence I 'ani enabled to heat the heater-body to a high degree without loss of electi'ical'cnergy.

'lhroughout the edgey of the heater-body 1 I forni a channel 4, in which at the side edges of the body thev return-bends of the coil are located, so that they are completely isolated from the. extreme edges of the body, and as a conscquencc`thc body at the side edges by jutting beyond the return-.bends of the coil forni insulators, through the medium of which any, metal vor other conductor of electricity with which thc heater may come in contact is held away from the coil, so that there can be no loss of electrical current, such as would occur if the coil were in contact. with such conductor. The channels at the ends of the heater-body serve as conductors in which the terminals oi the, coil arey laid, so that the coil may terminale at the opposite edge of the heater from that at which it passes from the heater-body in thc cndinost coil-duct 2.

In the modification illustrated in Figs. IV to VI, inclusive, the body of my heater consists of a lower slab 1 and an upper slab 1b. The upper slab is ilat surfaced at both sides. The lower slabis provided with a plurality of longitudinally-extending ribs 2, that are spaced slightly apart to provide pockets 2b between them,- in which the coil 3 is laid, the coil being woven to and fro, as seen in Fig. VI. In the bottom slab at each end are transverse channels 4 and 4b, the channels 4 serving to receive the return-'bends of the coil 3, as seen in Fig. VI. The channels 4b serve to receive the terminals of the coil, so that said terminals may be carried transversely of the heater-body to lead away from the body at either side edge thereof, accord innr to exigency.

lI claim as my invention--` 1. In a water-heater, the combination of a single-ineinher body of heat-radiating 'materia that. is a non-conductor of electricity, and an electrical conductor-coil laid interior of said body, substantially as set forth.

.2. In a Water-heater, the combination of a sin le incinbcr body of heat-radiating materia that is non-conductor of electricity, and an electrical conductor-coil laid interior of IOO Said body; Siiid body being provided Willi fr channel at its edge in which tho rotlirmbcnds of said conductor saut, subsmutially svt forth.

3. In an electrifjal water-Maxtor, th@ ombinnvtion 'of a single-membri' body provided Wthducts extending centrally thvrethrough and @immaterial which is conductor ol" heut and n. non-conductor ol" electricityy :md un electrical conductor-coil luid usziid ducts, Substantially as sety lordi.

4. In am electric uf'ziter-liizltvl', thix combination of :L single-mumbai". l olid body provided with a plurality of' ducts @monding centrally therethrough und of nmlcrial that. iS a Conductor of hout `(md :1. non-comluvtor of electricity, and n singley comluclor-uoil threaded through Said dufftS throughout the. extant I of Suid body, substantially als sbt forth.

iny an electric WMM-Hheater., the. Combination of a` Single-numlbor solid body prf vidvd with a plurality ol'` ducw extending Centrally therethrough nud ol" material that is a conductor of honiy :md :1. non-coururtor of Qle(:tri i1.y,a11d u singli condurtor-coil Lhruzided through Suid duels *.hioughout, the extent of said body; said bod)Y boing providod :it its edge with a, Channel iu 'which tho re'trun bendsof said Coil sont, subtzmtiully :is set forth.

FREDERC F. In presence nl M. P. SMITH, BLANCHE HOGAN. 

